C-wvgvtk



F. A. SCHMOUTZ.

KNIGHT ENGINE.

MPucAnoN FILED ocT.22, 1917.

Patented Sept. 23, 1919.

4 SHEETS-SHEET l.

My. i

22 my, wu

JWM.

F. A. SCHMOUTZ.

KNlGHT ENGINE.

APPLICATION FILED 001.22, 1911.

l ,3 l 6,867 Patented Sept. 23, 1919.

4 SHEETS-SHEET 2.

,ILo mw,

F. A. SCHMOUTZ.

KNIGHT ENGINE.

APPLICATION FILED OCT.22, 1917.

I ,3 1 6,867. Patented Sept. 23, 1919.

4 SHEETS-SHEET 3.

ffy.; f9.4

5.2mm M @www F. A. seHMeuTz.

KNIGHT ENGINE,

APPLICATION FILED OCLZZ. I9I7. l 3 1 6,867 Patented Sept. 23, 1919.

4 SHEETS-SHEET 4.

N, I I QI IW OFFICE.

FERDINAND ANTOINE SCHMOUTZ, 0F PARIS, FRANCE.

KNIGHT ENGINE.

Specication of Letters Patent.

Patented Sept. 23, 1919.

Application led October 22, 1917. Serial No. 197,819.

'Engines of which the following is a specication.

The Knight engine is coming into extensive use in the automobile industry on account of its silent working, its fiexibility, its efficiency and its stability. In spite of the recognized qualities which this motor' possesses at the present time, it may be modified in an important measure as concerns the adjustment of the compression, this being done in such manner that the motor can be readily started by the hand crankz and on the other handit will allow of using a very high rate of compression while running and at the saine time the rate of compression can be modified as desired, according to the amount of power which the engine is called upon to furnish.

In motors of the valve type, the compression is diminished at the time of starting by sending into the muler box a part of the fresh gas drawn in, and the power of the engine is regulated by modifying the quality of the gas mixture supplied to the engine, this being done by acting on the throttle valve of the carbureter. As will be observed, the means employed for starting and operating the engine are not of a very economical nature. y

The improvement made in the Knight engine by the present invention consists essentially in regulating the compression by varying the size of the gas inlet openings, without acting on the openings of the exu haust or upon the carbureter. In this way the compression canbe modiied gradually throughout a very wide range which starts with very low values corresponding to starting and slowing up of the engine, and rises to the highest values allowing the use of low quality of producer gas. The gas mixture drawn into the engine will now have an. invariable quality, and only its quantity will be variable, and in no case there will never be any loss of gas. 'These results are obtained in the follow.- ing'manner:

By dividing the outer bushing or sleeve of the Kmght engine according to two diametric-ally opposite generatrices so as to form two half-bushings, one corresponding to the inlet and theother to the exhaust.

B. By operating the inlet half-bushing independent of the exhaust half-bushing.

C. Lastly, 'by providing the inlet half bushing with a set of regulating" levers which allow of varying the position of this half-bushing with reference to the inner bushing containing the piston, and with reference to the exhaust half-bushing.

The displacement of the exterior inlet halfbushing with reference to the inner bushing allows of varying gradually and as desired the size of the gas inlet openings and accordingly; the amount foi'y cylinder contents, upon 4which de end the compression and the power. gince the exhaust half-bushing is not operated, the size of the exhaust openings remains the same.

Any suitable arrangement can be emloyed to effect the operation of the inner us ing and the two outer half-bushings. In the engine designed according to this invention and represented in constructive example in the accompanying drawings, this operation is effected in an especially simple manner by the use of a solid cylinder oV erated by the engine and provided with t ree suitable profile grooves or traveling ways, each of which is adapted to Work together with a stud (or roller) which is displaced within said traveling ways, the studs o1' rollers being connected with the inner bushing or with one or the other of the outer half-bushings.

In these drawings:

Figure 1 is a vertical section of a Knight engine improved according to the present invention, the section being made along the broken line 1-1 of Fig. 2.

Fig. 2 is a horizontal section of the engine taken approximately along the broken line 2--2 of Fig. 1, some parts being shown in elevation. In this figure the motor is sup'- .v posed to contain a set of two cylinders.

l Figs. 3 to 6 are diagrams showing the poslition of the bushings at 4 points of the cyc e.

As will be observed in Figs. 1 and 2, the engine designed according to the present invention uses the following arts of the Knight engine, namely, the cylinder 1, cylinder head 2 and inner bushing 3 in which lll the piston 4 nieves. The Youter bushingis cut according to two diametrically opposite' generatrices so as to form two half-buslnngs 5 and 6, of which the iir'st correspondsto the inlet and the 'second to the exhaust.

Gas inlet takes place throufgh the openings A 7 of the cylinder 8 of the hal -bushing 5 and 9 of the inner bushing, when these openings come opposite each other. In the same way, the exhaust takes place by the juxtaposition of the openings 10 of the inner bushing 3,

, half-bushings, these three parts being indev the other.

lill

`amount.

pendent oft each other and designed to be operated for instance by the use of a distributer made up of a cylinder i3 provided with the sliding ways la, l5 and 16 and operated by the shalt 17 and pinions 17 and 1'?"D at a speed equal 'to half the engine speed. The bushing 3 and the two haii-bushings 5 and are respectively solid With'the studs i8, 19 and 2O applied upon the sliding ways 14,15 and i6 so as to produce the linear and alternative displacement of the bushings, on the rotation of the distributor 13. c

lt will be observed that the stud-i9 is not attached directly to the hall-bushing 5, as is the case for the stud i8 and bushing lever 2l to which is articulated at 22 a strap 23 which is alsoconneeted to the lug 24 of the vhalf-bushing 5. The lever 2l carries a shaft 25 journaled in a collar 2-6 cast on the end et one arm ol a bent lever 27 articulated on a fixed shaft 28 and connected bya strap n 29 to a second bent lever 30 articulated on a fixed shait 31 and employed :for operating the mechanism.

When' the bent lever 3l) is moved in one direction or the other, the lever 27 turns about its shaft 28 and the collar 26 rises or :falls and thus carriesl with it the shaft 25 and consequently the lever 2l and the halfbushing. In the diagram, Fi 3, the full lines represent one position of t .e levers, and the dotted lines another position oi this system of levers after' the operatinpg lever 30 has swung toward the left, and this latter movement causes the half-bushing 5 to descend with reference to the half-bushing 6 and the inner bushing 3. y

It follows :from the'abovethat by operaia- 'ing the lever 30, the half-bushing 5 can be displaced with reference to'thehalf-busliing 'f5 and the bushing 3, in a continuous manner,

in the proper direction, and by anydesired lt is thus evident that this allows of a dual adjustment of the size of the inlet 3 on -one hand, and stud 20 and half-bushing 6 on This stud i9 is carried on theY cylinder and accordingly -the value of the4 compression and of the power, without loss of gas and without any action on the care. bui-eter, and this latter will always supplyl a constant qualityof gas mixture.

Figs. -3 and 5 represent the positions of the bushings corresponding. to four points of the cycle and these figures allow of observing the el'ect produced by a displacement of the half-bushing` 5 upon the opening of the inlet oriiices-` llt will be seen that the present engine possesses the advantages of the 'Knight engine as regards the gas inlet and exhaust, lubrication, simple construction and solidity.

The operating lever system and the distributor 13 are here shown by way oli-vex-l ample and can be modiiied without departing from the principle of the invention. However it should be remarked that this distributor isspecially advantageous, andl in the `case of a two-cylinder engine such as shown in Fig. 2, it allows of operating the bushings of the two cylinders.

.Having now described my invention, what l claim as new and desire lto secure by Letters atent is: n I

l. In an explosion engine, the combination of a worlnng cylinder havinginlet and exnaust openings, segmental inlet and eX- .nanst valves movable in said cylinder and Ahaving; inlet and exhaust openings, respectively, a bushingmovable within the said segmental valves and having inlet and exiiaust openings, driving' means for reciproeating the segmental valves and the bush- .ing and means for varying the position'of one of the segmental valves withv respect tc tbedrivinn means. n2. ln an explosion engine, the combination oi a worlging cylinder having inlet and exhaust openings, segmental inlet and exnaust valves movable in said. cylinder and havingr inlet and exhaust openings, respec- Atively, a bushing;v movable within the said4 cylinder, anali-bushing for inlet and a half# bushing for exhaust movable in said'cylinf` der and juxtaposed .accordingl to two diametrically opposite generatrices, inlet and exhaust openings disposed in these two halfbushings, a bushing movable within the said half-bushings, inlet and e'Xhaust openings.

las i disposed in said bushing, a straight lever, .means for connecting one end ofthis straight lever to the outer half-bushing used for inlet, a bent lever pivoted about a fixed shaft and having one arm articulated upon the straight lever, means :for operating the bent lever, means` acting upon the 'free end of said straight lever and producing a vto-andfro movement of the outer half-bushing used for inlet, and means for producing independent 'to-and-fro movements of the outer half-bushing used for exhaust and of the inner bushing, substantially as describedand for the purpose set forth.

4. A'distribution system for Knight engines, containing, in combination, a cylinder, inlet and exhaust openings disposed in said cylinder, a hallbushing for inlet and a half-bushing for exhaust movable in said cylinder and juxtaposed according to two diametrically opposite generati-ieee, inlet and exhaust openings disposed in these two halt'- bushings, a bushing movable within the said halffbushings, inlet and exhaust openings disposed in said bushing, a straight lever,

a lug cast with the outer halt-bushing used for inist, a strap connecting one end of the straight lever to said lug, a bent lever pivoted about a fixed shaft and having one arm articulated upon the straight lever, a second bent lever, a strap connecting one arm ot' this bent lever to the 'free arm of the lrst, bent lever, a stud disposed at the tree end oi the above mentioned straight lever, two lugs one of which is disposed on outer haltbushing used for exhaust and the other on the inner bushing, a stud carried by each of these lugs, a cylinder, three grooves or sliding ways disposed on said cylinder, with one of the three above-mentioned studs working in one of the grooves respectively, and means for rotating this cylinder upon its axis, substantially as described and for ,the purpose set forth. 1

5. ln an explosion engine, the combination ot two working cylinders arranged in arallelism to each other and having both mlet and exhaust openings, segmental inlet and exhaust Avalves movable yin each of said cylinders and having inlet and exhaust openings, respectively, a bushing movable in each of the pairs of segmental valves and having inlet and exhaust openings and driving means for reciprocating the four segmental valves and the two bushings in the two cylinders, said driving means embodying one rotatable member having three cam grooves on its outer periphery and means for rotating said member.

6. In an explosion engine, the combination of, two working cylinders arranged in arallelism to each other each of them having inlet and exhaust ports, segmental inlet and exhaust valves movable in each ot' said cylinders and having inlet and exhaust openings respectively, a bushing movable within each of the pairs of segmental valves and having inlet and exhaust openings, driving means for reciprocating the tour segmental valves and the two bushings in the two cylinders, said driving means embodying one rotatable member having three cam grooves in its outer periphery, means for rotating said member, studs on the busliings in both cylinders engaging in one cam groove, studs on the exhaust segmental valves in both cylinders engaging in the second cam groove, two studs engaging in the third cam groove, two pivotcdv levers upon which said studs are carried respectively, means for connecting the said levers to the inlet segmental valves of thetwo cylinders, respectively, one shaft upon which both of said levers are pivoted and means connected to said sha-ft for varying the position oi' the levers and inlet segmental valves, substantially as described and for the purpose set forth.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses. v

FERDINAND ANTOINE SCHMOUTZ.

Witnesses:

Leers Moses, Cime. P. Pnnssmr. 

